package com.guigu.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.rememberme.JdbcTokenRepositoryImpl;
import org.springframework.security.web.authentication.rememberme.PersistentTokenRepository;

import javax.sql.DataSource;

@Configuration
public class MySecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsService userDetailsService;

    //用于自动登录，注入数据源
    @Autowired
    private DataSource dataSource;

    //用于记住我和自动登录
    @Bean
    public PersistentTokenRepository persistentTokenRepository(){
        JdbcTokenRepositoryImpl jdbcTokenRepository = new JdbcTokenRepositoryImpl();
        jdbcTokenRepository.setDataSource(dataSource);
        //jdbcTokenRepository.setCreateTableOnStartup(true); //自动创表
        return jdbcTokenRepository;
    }


    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
    }

    @Bean
    PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    /**
     * 自定义设置登录页面,不需要认证可以访问
     * @param http
     * @throws Exception
     */
    @Override
    protected void configure(HttpSecurity http) throws Exception {

        //设置403页面
        http.exceptionHandling().accessDeniedPage("/unauth.html");

        //设置退出
        http.logout()
                .logoutUrl("/logout")
                .logoutSuccessUrl("/hello");
                //.permitAll();

        http.formLogin()   //自定义自己编写的登录页面
            .loginPage("/login.html")     //登录页面设置
            .loginProcessingUrl("/login")    //登录访问路径
            //.defaultSuccessUrl("/success.html").permitAll()//登录成功后，跳转路径
            .successForwardUrl("/toSuccess")//登录成功后，跳转路径
            .failureForwardUrl("/toError");//()
            //.and()


        //授权
        http.authorizeRequests()
            .antMatchers("/login.html",
                    "/hello",
                    "/toError",
                    "/error.html")
                .permitAll()//设置哪些路径可以直接访问，不需要认证
                //测试第一个方法hasAuthority()
                //(1)当前登录用户只有具有admins权限才可以访问这个路径
                // .antMatchers("/test/index").hasAuthority("admins")
                //(2)用户具有多个权限
                //.antMatchers("/test/index").hasAnyAuthority("admins,emp")
                //(3)ROLE_salary  源码会拼接ROLE_
                //.antMatchers("/test/index").hasRole("salary")
                //(4)hasAnyRole
                .antMatchers("/index").hasAnyRole("salary")
                .anyRequest().authenticated();

                http.rememberMe().tokenRepository(persistentTokenRepository())
                .tokenValiditySeconds(60*60*24*10) //10day
                .userDetailsService(userDetailsService);


                http.csrf().disable();  //关闭csrf防护


    }
}
